Abstract
In this paper, the offshore process FEED (Front-End Engineering Design) method for oil FPSO (Floating, Production, Storage, and Offloading) topsides systems is systematically described based on the concepts and procedures for FEED of general offshore plants. First, various activities of general process FEED phase are defined and analyzed, and then the offshore process FEED method, which is suitable for application of all offshore oil and gas plants, is established. Finally, for the purpose of testing the validity of the established FEED method, it is applied to oil FPSO topsides systems. This established process FEED method would contribute to performing successful offshore projects in the future.